"Net" is a noun with different meanings. A "net" can be a device used for fishing, or an overall end result. Based on all the choices final is a synonym for the second definition, and therefore the correct answer.

“Reproach” is a word that can be used as a noun or a verb, but because all of the answer choices can be used as verbs, we will need to consider “reproach” as a verb. When used as a verb, “reproach” means “to express disapproval or disappointment,” so we need to pick out an answer choice that means something like “express disapproval or disappointment.” That means that “congratulate” cannot be the correct answer, because “congratulate” means “to praise for a particular achievement,” making it an antonym, not a synonym, of “reproach.” “Fault,” however, when used as a verb, means “criticize for inadequacy or mistakes,” and because “fault” is the answer choice closest in meaning to “reproach,” “fault” is the correct answer.

“Vault” is a word that can be used as a noun or a verb, but because all of the answer choices can be used as verbs, we will need to consider “vault” as a verb. When used as a verb, “vault” means “leap or spring,” or, when used with an object, “jump over an obstacle.” So, we need to pick out an answer choice that means something like “leap over something.” That means that “tumble” cannot be the correct answer, because “tumble,” when used as a verb, typically refers to a person and means “fall suddenly, clumsily, or headlong,” a meaning very distant from that of “vault.” “Hurdle,” however, when used as a verb, means “jump over (a hurdle or other obstacle) while running,” when used with an object, and because “hurdle” is the answer choice closest in meaning to “vault,” “hurdle” is the correct answer.

“Breach” is a word that can be used as a noun or a verb, but because all of the potential answer choices are verbs, we will need to consider “breach” as a verb. When used as a verb, “breach” can mean “make a gap in something and break through” or “break or fail to observe something contracted or necessary.” So, we need to pick out an answer choice that means something like “break through” or “fail to observe.” That means that “obey” cannot be the correct answer, because “obey” can mean “ behave in accordance with authority,” making it an antonym, not a synonym, of “breach.” “Infringe,” however, is a verb that can mean “actively break the terms of a contract or law,” and because “infringe” is the answer choice closest in meaning to “breach,” “infringe” is the correct answer.

"Utter" means to make a noise or say something out loud.

To "brief" someone means to inform them about something.

To "engineer" something means to arrange for it to happen, or to contrive things.

One definition of minute is very small.  

To curb something means to restrain it or keep it in check.

The words "branch" or "division" can both refer to a specialized department at an institution. The other words are related to money.